‘I Know What You Did Last Summer’ Season 1: Release Date, Cast And More

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Are you getting tired of hearing dumb jokes based on the title ofI Know What You Did Last Summer? Well, get ready to hear one more, presuming you’re still here and you want to know everything we know aboutI Know What You Did Last Summerseason 1.

I Know What You Did Last Summer Season 1 Release Date and Where You Can Watch It

The first four episodes ofI Know What You Did Last Summerseason 1 will premiere onAmazon Prime Videoon Friday,June 23, 2025.The back half of the season — episodes 5 through 8 — will air over the course of the next four weeks, concluding with the season finale onNovember 12, 2021.

What is I Know What You Did Last Summer?

In this case,I Know What You Did Last Summeris an Amazon Original streaming television series. Though the first season is only eight episodes, press releases make it sound like they do hope to continue the story in subsequent seasons in the manner of MTV/VH1’sScream.

The series is a new YA adaptation of Lois Duncan’s 1973 novelI Know What You Did Last Summer. The book was the source material for a well-known 1997 teen slasher film, in which a killer known as the Fisherman used a meat hook to stalk a young Jennifer Love Hewitt, Sarah Michelle Gellar, Ryan Phillipe, and Freddie Prinze, Jr. That film spawned an immediate sequel,I Still Know What You Did Last Summer, and, years later, a direct-to-video sequel,I’ll Always Know What You Did Last Summer, which we spelunked in ourDTV Descentcolumn last year.

I Know What You Did Last Summer Season 1 Synopsis

The official plot synopsis forI Know What You Did Last Summerseason 1, courtesy of Amazon, is as follows:

One year after the fatal car accident that haunted their graduation night, a group of teenagers find themselves bound together by a dark secret and stalked by a brutal killer. As they attempt to piece together who’s after them, they reveal the dark side of their seemingly perfect town — and themselves. Everyone is hiding something, and uncovering the wrong secret could be deadly.

I Know What You Did Last Summer Season 1 Showrunners, Crew, and More

I Know What You Did Last Summerseason 1 is produced by Amazon Studios and Sony Pictures Television. Sara Goodman writes and executive produces the series alongside Neal H. Moritz and Pavun Shetty, Erik Feig, Peter Guber, Atomic Monster’s James Wan, Michael Clear, and Rob Hackett, Craig William Macneill, and Shay Hatten.

Moritz and Feig were both involved as producers in the 1997 film.

I Know What You Did Last Summer Season 1 Cast

I Know What You Did Last Summerseason 1 starsMadison Iseman,Bill Heck,Brianne Tju,Ezekiel Goodman,Ashley Moore,Sebastian Amoruso,Fiona Rene,Cassie Beck, andBrooke Bloom. Given that this is a slasher franchise, it’s a safe bet that not all the characters these actors play will be making it out of the season alive.

Iseman, the lead, co-starred in the two most recentJumanjifilms; Jack Black was her unlikely avatar in the video game. She also appeared in a couple other horror-inflected sequels,Goosebumps 2: Haunted HalloweenandAnnabelle Comes Home.

I Know What You Did Last Summer Season 1 Trailer

No trailer is available yet forI Know What You Did Last Summerseason 1, but Amazon has released some first-look imageshere.